Define the path to llvm-symbolizer tool in a common config to reduce copy-paste

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@185286 91177308-0d34-0410-b5e6-96231b3b80d8
Always set -m32/-m64 flags for targeting i386/x86_64 respectively. Apparently, there are platforms where the clang defaults are different from gcc

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@185287 91177308-0d34-0410-b5e6-96231b3b80d8
Hide mlock/munlock info message under verbosity flag.

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@185314 91177308-0d34-0410-b5e6-96231b3b80d8
[ASan] Remove leading underscores from function names in output tests

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@185315 91177308-0d34-0410-b5e6-96231b3b80d8
[sanitizer] Fix build with older kernels.

PTRACE_SETREGSET & PTRACE_GETREGSET may be missing from linux headers.


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@185317 91177308-0d34-0410-b5e6-96231b3b80d8
[ASan] Add sanity test for asan_symbolize.py script

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@185318 91177308-0d34-0410-b5e6-96231b3b80d8